A source close to the event today confirmed the change with MMAjunkie.com (www.mmajunkie.com) and said Buck vs. Paixao will be the final fight added to the card.

WEC 47 takes place March 6 at Nationwide Arena in Columbus, Ohio. The night’s main card airs on Versus.

Caraway was forced out of the bout with a knee injury.

Buck again fills in as a late replacement; the Minnesota Top Team fighter made his WEC debut and filled in on less than a week’s notice when he replaced Tyler Toner at WEC 45 in December. Buck suffered a TKO loss to Brandon Visher late in the third round and snapped a six-fight win streak.

Paixao, meanwhile, also looks for his first WEC win. After dropping a unanimous decision to Wagnney Fabiano at WEC 40, Paixao then suffered a split-decision defeat to Cole Province at WEC 42. However, the Province loss was overturned to a “no decision” when Province failed a post-fight drug test (due to Methasterone metabolite, a designer steroid).

Both fighters are likely to be cut with another WEC loss.

The full WEC 47 card now includes:

MAIN CARD

Champ Brian Bowles vs. Dominick Cruz (for bantamweight title)

Joseph Benavidez vs. Miguel Torres

Jens Pulver vs. Javier Vazquez

L.C. Davis vs. Deividas Taurosevicius

Karen Darabedyan vs. Bart Palaszewski

PRELIMINARY CARD

Chad George vs. Scott Jorgensen

Erik Koch vs. Chad Mendes

Danny Castillo vs. Anthony Pettis

Leonard Garcia vs. Diego Nunes

Bendy Casimir vs. Ricardo Lamas

Courtney Buck vs. Fredson Paixao*

* – Not officially announced.

For the latest on WEC 47, including the latest rumored fight card, stay tuned to the MMA Rumors section of MMAjunkie.com.

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